It a safe & affordable way to refine skin texture and improve the muscle tone. the compact unit comes with massager applicator, interchangeable heads & 2pcs AA alkaline batteries. The massager is ergonomically designed with applicators that can be easily snapped on .It operates efficiently on 2AA batteries. with its help, you can take care of your skin easily at home. only a few minutes, you can have a more healthy, elastic and shiny skin.